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ASCII NUL, ASCII 0 ('0') and numeric literal 0?

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Release： 2023-09-09 21:21:02

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$ASCII NUL，ASCII 0（\'0\'）和数字字面值0？$

这里我们将看到 ASCII NUL、ASCII 0 和 Numeric Literal 0。ASCII null 表示为 0x00，零表示为 0x30。 ASCII NUL 字符用于在 C 或 C++ 中表示字符串的结尾。当程序员使用“0”（字符 0）时，它被视为 0x30。这是一个十六进制数。十进制等效值是 48。要使用 ASCII NUL，我们必须提及“\0”而不是“0”。

char asciiNul = ‘\0’;
int zero = 0;
char zeroChar = ‘0’;

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第一个是 ASCII NUL，第二个是数字 0，第三个是字符 0。

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source：tutorialspoint.com

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